Mop Base Anti-Detachment Device to Prevent Cleaning Cloth Tab Release

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Solution Overview

Problem

The involuntary detachment of tabs on cleaning cloths from mop bases during use, due to excessive tension and stress, leads to unintended decoupling, especially in hidden areas, causing operational disruptions and potential damage.

Innovation Solution

An anti-detachment device configured as a rotated U or open C, with a slot-like housing on the mop base that securely fixes the tab, preventing orthogonal movement and ensuring the tab remains attached by limiting its upward movement with an upper horizontal rod that counters tension forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the tab is made sufficiently solid and firmly attached to the retention system, then the tab can keep its configuration throughout the life of the cloth, but the tab may detach during use due to excessive tension and stress

Engineering Contradiction:
Improvetab strengthVSAvoidtab retention reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The retention system is divided into separate functional elements: the retention system itself and the anti-detachment device. This segmentation allows each component to perform its specific function - the retention system holds the tab while the anti-detachment device prevents detachment under tension, resolving the contradiction between tab strength and retention reliability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The anti-detachment device applies preliminary anti-action by creating a mechanical barrier that counteracts the detachment force before it can cause failure. The device is positioned to intercept and neutralize the excessive tension and stress that would otherwise cause the tab to detach, maintaining reliability while preserving tab strength

Inventive Principle:
Principle #9Preliminary anti-action

2Reliability

If a mobile securing portion is added to prevent the mobile portion from opening, then the tab retention is improved, but the device complexity increases

Engineering Contradiction:
Improvetab retention reliabilityVSAvoidanti-detachment device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The anti-detachment device is merged with the existing retention system structure, sharing common elements such as the base portion and mobile portion. This merging allows the anti-detachment function to be added without creating a completely separate complex device, as the new features are integrated into the existing framework

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The anti-detachment device introduces a new dimensional constraint by limiting orthogonal movements of the tab. While the retention system operates in one dimension (holding the tab), the anti-detachment device adds control in a perpendicular dimension (preventing upward/lateral movement), thereby improving reliability without proportionally increasing complexity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3790440B1Mop base comprising an Anti-withdrawal device and a cleaning cloth
Publication Date: 2024.08.07 TTS CLEANING SRL
  • EP3790440B1 patent drawingFigure 1
  • EP3790440B1 patent drawingFigure 2~3
  • EP3790440B1 patent drawingFigure 4~6

AI summary

This is an anti-detachment device for the tabs for a cleaning cloth associated with the relative base which is able to ensure they remain in place during the relative cleaning operations.